diff --git a/internal/querynodev2/delegator/delegator.go b/internal/querynodev2/delegator/delegator.go
index beef7c85b1..1e65a31b72 100644
--- a/internal/querynodev2/delegator/delegator.go
+++ b/internal/querynodev2/delegator/delegator.go
@@ -243,6 +243,7 @@ func (sd *shardDelegator) shallowCopySearchRequest(req *internalpb.SearchRequest
 		GroupSize:          req.GroupSize,
 		FieldId:            req.FieldId,
 		IsTopkReduce:       req.IsTopkReduce,
+		IsRecallEvaluation: req.IsRecallEvaluation,
 	}
 
 	return nodeReq